A user reports that their desktop PC no longer displays an additional internal storage drive that holds important project data. You have confirmed that the drive receives power and that its SATA power and data cables are firmly attached. After rebooting the system, the drive is still missing from File Explorer. Which troubleshooting step should you perform NEXT?
Open Disk Management to see whether the drive is present, initialized, and assigned a drive letter.
Inspect external interface ports to verify that the drive is not connected incorrectly.
Update the system's storage-controller drivers and restart the computer.
Replace the SATA data cable to rule out a defective cable.
With power and physical connections verified, the next logical step is to look in the Disk Management utility. If the disk is present there but marked offline, uninitialized, or missing a drive letter, it will not appear in File Explorer. Inspecting Disk Management lets you confirm this quickly and, if necessary, initialize the disk or assign it a drive letter. Updating storage-controller drivers or swapping cables can be done later if the disk does not appear in Disk Management at all, and checking external connectors is irrelevant because the drive is installed internally.
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What is Disk Management in Windows?
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What does it mean for a disk to be uninitialized in Disk Management?
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Why is assigning a drive letter important, and how is it done?
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CompTIA A+ 220-1101 (V14)
Hardware and Network Troubleshooting
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